DS16008 Rev. B1-2 1 of 2 US1A - US1M
www.diodes.com ã Diodes Incorporated
US1A - US1M
1.0A SURFACE MOUNT ULTRA-FAST RECTIFIER
Features
Mechanical Data
Maximum Ratings and Electrical Characteristics TA = 25°C unless otherwise specified
Notes: 1. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
2. Measured with IF = 0.5A, IR = 1.0A, Irr = 0.25A.
·Glass Passivated Die Construction
·Diffused Junction
·Ultra-Fast Recovery Time for High Efficiency
·Low Forward Voltage Drop, High Current
Capability, and Low Power Loss
·Surge Overload Rating to 30A Peak
·Ideally Suited for Automated Assembly
·Plastic Material: UL Flammability
Classification Rating 94V-0
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic Symbol US1A US1B US1D US1G US1J US1K US1M Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
50 100 200 400 600 800 1000 V
RMS Reverse Voltage VR(RMS) 35 70 140 280 420 560 700 V
Average Rectified Output Current @ TT = 75°CIO1.0 A
Non-Repetitive Peak Forward Surge Current
8.3ms Single half sine-wave Superimposed on Rated Load
(JEDEC Method)
IFSM 30 A
Forward Voltage Drop @ IF = 1.0A VFM 1.0 1.3 1.7 V
Peak Reverse Current @ TA = 25°C
at Rated DC Blocking Voltage @ TA = 100°CIRM 5.0
100 mA
Reverse Recovery Time (Note 2) trr 50 75 ns
Typical Junction Capacitance (Note 1) Cj20 10 pF
Typical Thermal Resistance, Junction to Terminal RqJT 30 °C/W
Operating and Storage Temperature Range Tj, TSTG -65 to +150 °C
·Case: Molded Plastic
·Terminals: Solder Plated Terminal - Solderable
per MIL-STD-202, Method 208
·Polarity: Cathode Band or Cathode Notch
·Marking: Type Number
·Weight: 0.064 grams (approx.)
·Mounting Position: Any
A
B
C
D
G
H
E
J
SMA
Dim Min Max
A2.29 2.92
B4.00 4.60
C1.27 1.63
D0.15 0.31
E4.80 5.59
G0.10 0.20
H0.76 1.52
J2.01 2.62
All Dimensions in mm
SPICE MODELS: US1A US1B US1D US1G US1J US1K US1M
DS16008 Rev. B1-2 2 of 2 US1A - US1M
www.diodes.com
50V DC
Approx
Oscilloscope
(Note 1)
Pulse
Generator
(Note 2)
Device
Under
Test
trr
Set time base for 50/100 ns/cm
+0.5A
0A
-0.25A
-1.0A
Fi
g
. 5 Reverse Recover
y
Time Characteristic and Test Circuit
(+)
(+)
(-)
(-)
0.01
0.1
1.0
10
100
1000
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fi
g
.4 T
y
pical Reverse Characteristics
T=100°C
j
T=25°C
j
0.01
0.1
1.0
10
00.40.8
I , INSTANTANEOUS FORWARD CURRENT (A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
Fi
g
.2 T
y
pical Forward Characteristics
1.2 1.6 2.0
US1A - US1D
US1G
US1J - US1M
0
10
20
30
40
1 10 100
I , PEAK FORWARD SURGE CURRENT (A)
FSM
NUMBER OF CYCLES AT 60Hz
Fi
g
. 3 Forward Sur
g
e Current Deratin
g
Curve
Single Half Sine-Wave
(JEDEC Method)
T=150°C
j
0
0.5
1.0
25 50 75 100 125 150
I , AVERAGE RECTIFIED CURRENT (A)
O
T , TERMINAL TEMPERATURE (°C)
T
Fi
g
. 1 Forward Current Deratin
g
Curve
